body{
    margin:0;
    padding: 0;
    font-family: sans-serif;
    background: url("../resources/login.jpg");
    background-size: cover;
    background-color: rgba(240, 255, 255, 0.5);
}
.box
{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width:400px;
    padding: 40px;
    background:rgba(75, 81, 95, 0.3);
    box-sizing:border-box;
    box-shadow:7px 7px 17px rgba(52, 56, 66, 0.5);
    border-radius: 10px;/*登录窗口边角圆滑*/
}
.box h2
{
    margin:0 0 30px;
    padding:0;
    color:#fff;
    text-align:center;
}
.box .inputBox
{
    position:relative;
}
.box .inputBox input
{
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom:30px;/*输入框设置*/
    border:none;
    border-bottom:1px solid #fff;
    outline:none;
    background:transparent;
}
.box .inputBox label
{
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    pointer-events: none;
    transition: .5s;
}

/*账号登录向上滑行的效果
*/
.box .inputBox input:focus ~ label,
.box .inputBox input:valid ~ label
{
    top: -18px;
    left: 0;
    color: #03a9f4;
    font-size: 12px;
} 
/*input下的提交按钮样式*/
.box  input[type="submit"]
{
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    background: #03a9f4;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}
.box  input[type="reset"]
{
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    background: #03a9f4;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}
.box  input[type="button"]
{
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    background: #03a9f4;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}
.b1
{
    color: white;
    font-size: 60px;
    font-family: "楷体";
    font-weight: bold;
    text-align: center;
    margin: 50px;
    padding: 60px;
    text-shadow: aqua 1px 2px 1px;
}

#loginpro{
	position: absolute;
	top:70%;
	left:37%;
	z-index:1;
}

span{
	font-size: 15px;
	color: white;
}
